Facebook UK has said that the technical difficulties experienced by many users were due to "network maintenance," but that these have now been resolved:
Earlier this morning, while performing some network maintenance, we experienced an issue that prevented some users from posting to Facebook for a brief period of time.
We resolved the issue quickly, and we are now back to 100%. We're sorry for any inconvenience we may have caused.
More top news
Nearly 300 staff have been axed at Russell Hume after the meat supplier collapsed into administration.
What would the Colonel say? KFC been forced to shut a number of its outlets across the UK after running out of chicken.